5.4k citations · 9.1k across the 17 of their papers we have counts for
4 papers · 1 filter
A Synoptic, Multiwavelength Analysis of a Large Quasar Sample
Adam W. Rengstorf, Robert J. Brunner, Brian C. Wilhite
We present variability and multi-wavelength photometric information for the 933 known quasars in the QUEST Variability Survey. These quasars are grouped into variable and non-varia…
Spectral Variability of Quasars in the Sloan Digital Sky Survey. II: The C IV Line
B. C. Wilhite, D. E. Vanden Berk, R. J. Brunner +1
We examine the variability of the high-ionizaton C IV line in a sample of 105 quasars observed at multiple epochs by the Sloan Digital Sky Survey. We find a strong correlation betw…
Characteristic QSO Accretion Disk Temperatures from Spectroscopic Continuum Variability
Nicolas A. Pereyra, Daniel E. Vanden Berk, David A. Turnshek +5
Using Sloan Digital Sky Survey (SDSS) quasar spectra taken at multiple epochs, we find that the composite flux density differences in the rest frame wavelength range 1300-6000 AA c…
Spectral Variability of Quasars in the Sloan Digital Sky Survey. I: Wavelength Dependence
Brian C. Wilhite, Daniel E. Vanden Berk, Richard G. Kron +5
Sloan Digital Sky Survey (SDSS) repeat spectroscopic observations have resulted in multiple-epoch spectroscopy for roughly 2500 quasars observed more than 50 days apart. From this…